Bureau of Mines -- Technical Paper Series on Mining [3 folders], 1916–1949

Bureau of Mines -- Technical Paper Series on Mining [3 folders], 1916–1949, Box: 3. J.J. Rutledge Technical Writings on Coal Mining, A&M 3312. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/164338 Accessed February 03, 2026.